Perhaps you should try some spelling variations:
"coleccion sciences political en clase" » "coleccion ciencis political en clase", "coleccion ciencias political en clase", "coleccion ciencia political en clase", "coleccion science political en clase", "coleccion science politics en clase", "coleccion sciences biological en clase", "coleccion sciences politica en clase", "coleccion sciences politicas en clase", "coleccion sciences political _ clase", "coleccion sciences political en clave", "coleccion sciences political la clase", "coleccion sciences political de clase"
"coleccion artes portal de clacso" » "coleccion artes por de clacso", "coleccion artes portatil de clacso"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coleccion artes portal de clacso") or ("coleccion sciences political en clase"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("coleccion artes portal de clacso") OR ("coleccion sciences political en clase")).
• Removing quotes may allow a broader search: (( coleccion artes portal de clacso ) or ( coleccion sciences political en clase )).
• Adding a wildcard symbol may retrieve word variants: (("coleccion artes portal de clacso") or ("coleccion sciences political en clase"))*.